I believe artillery guns and barrels that are highly pressurised often use shrink fitting (heating up a tube causing it to expand allowing it to be fitted over a smaller tube which it will apply an inward pressure on when it cools) to oppose the pressure from inside the barrel. Could this...
When a car turns there is a centripetal force acting at the tyres to get it round the bend. There is also an acceleration of the chassis away from the bend acting at the centre of gravity. These combine to create a torque which causes the chassis to roll about the roll centre. Is this correct...
Im not sure of the actual name but a spinning object has a stabilising effect such as with the bike wheel experiment. How would i calculate the force required to overcome this stabilising ?
What gyroscopic forces act on a car fitted with a flywheel kers system? From what i understand if the flywheel was mounted transversely and rotating clockwise when viewed from the right side of the car and the car turned right gyroscopic precession would cause the car to roll to the left ie a...
Ahhh okay so what equation would i use to calculate the acceleration? I haven't got a figure for the time of the crash. By survive i mean the rotor isn't going to fly off the bearings and embed itself in someones head. Thanks
Thats a good point, i hadn't thought of that. So are you saying the coupling would support it one end and then another magnetic bearing at the other to support that? The system would be in use on a car would using magnetic bearings not lead to the flywheel wobbling after bumps in the road? I was...
Basically what i have is a hermetically sealed vacuum chamber but i need to transmit torque via a shaft to and from a flywheel inside. The 2 ways i can see to do this is just having a seal on the shaft which might leak and cause a lot of friction or transmitting the torque through the wall of...
I have a rotor spinning perpendicular to the direction of travel of a car. Its supported at either end of its axle by bearings. The car crashes and I've calculated the force of the crash to be approximately 672kN. How would i simulate this on the rotor as a shock load? I could do it as a static...
Im working on designing a high speed flywheel as part of a project. The main issue is the centrifugal forces acting on the flywheel to tear it apart. If i was to construct a flywheel using interference fit tubing which is put together using thermal expansion of the outer tubes so that they are...
Ive been doing some engine testing at university and have created some torque, power ad BSFC curves. The engine used is a JCB 4.4l twin turbo diesel engine. I then compared to my results to the manufacturers graphs and got these. I need some ideas on what could cause the difference in torque...